hmm, little problem here exporting a textured 2k poly mesh I get this error:

vertex list generated...
uv list generated...
Traceback (most recent call last):
File "<string>", line 105, in gui
File "<string>", line 197, in export
File "<string>", line 180, in get_triangles
IndexError: list index out of range

However a simple polygon worked, so seems some object parameter is not healthy.
Well, I will find out ;-)